You are encouraged to familiarise yourself with its setup and parser functions before editing the template. If your edit causes unexpected problems, please undo it quickly, as this template may appear on a large number of pages.
Remember that you can conduct experiments, and should test all improvements, in either the general Template sandbox or your user space before changing anything here.

The short title of the legislation, which should preferably be the same as the article title. If the parameter is left blank or omitted, the article name is used.

image

An image to represent the person or institution that enacted the legislation, such as a coat of arms, a seal or a photograph of a building. Type the name of the image without the "File:" prefix and do not wikilink it. If you omit this parameter, the template automatically displays an image according to the scheme at {{Infobox legislation/images}}.

imagesize

The width of the image in pixels (px), particularly if it is less than 180 px. Type the number without the "px" suffix ("150", not "150px"). If this parameter is left blank or omitted, the image size defaults to 180 px.

imagelink

A hyperlink for the image. This can either be a URL or the name of a Wikipedia article. Do not enclose the URL or article name in square brackets. If no link is specified or the parameter is omitted, the image is linked to its image description page.

The citation of the legislation. If the legislation is available online, use a citation template where available to generate an external link automatically, or else create a link manually. If the citation uses square brackets, replace them with &#91; and &#93; when putting them inside an external link.

territorialextent

The territorial area to which the legislation extends or applies. If possible provide a wikilink.

enactedby

The name of the person or institution that enacted the legislation. Wikilink the name to a Wikipedia article about the person or institution, if there is one. To cause the template to automatically display an image representing the person or institution, such as a coat of arms, a seal or a photograph of a building, enter the name of the person or institution as shown at {{Infobox legislation/images}}.

The name of the bill that was eventually enacted. Wikilink the name to an article about the bill, if there is one.

billcitation

The citation of the bill. If the bill is available online, create an external link to it. If the citation uses square brackets, replace them with &#91; and &#93; when putting them inside an external link.

billdate

The date when the bill was published.

introducedby

The name of the legislator who introduced the bill.

1streading

The dates of the first, second and third readings of the bill in the legislature. If the legislative debates are available online, create external links to them.

2ndreading

3rdreading

whitepaper

The name of a white paper relating to the legislation. If the white paper is available online, create an external link to it.

committeereport

The name of a report issued by a legislative committee about the bill that was eventually enacted. If the report is available online, create an external link to it.

amendments

The citations of any notable amendments to the legislation. If the texts of the amendments are available online, create external links to them.

repeals

The citations of any notable legislation repealing parts or previous versions of the legislation. If the texts of the repealing legislation are available online, create external links to them.

related

The names and citations of any related pieces of legislation. Where possible, link the name of a related piece of legislation to a Wikipedia article about it, and link the citation to an external website containing the text of the related legislation.

summary

A very brief summary of the subjects that the legislation deals with.

keywords

A list of keywords that describe the legal issues dealt with by the legislation. List keywords alphabetically, separate them with commas, and link them to appropriate Wikipedia articles wherever possible; for example, "[[Bailment]], [[common carrier]], [[negligence]], [[strict liability]]".

If the parameter |image= is used in the template, that image is displayed. If a value is specified for |imagesize=, the image is given that width; otherwise the image width defaults to 180 px.

If |image= is not used, a check is done to see if the value of |enactedby= is listed in {{Infobox legislation/images}}. If the result is "None", then no image is displayed. If the result is an image file (the coat of arms or seal, or a photograph of a building representing the person or institution that enacted the legislation), then the image file is displayed. {{Infobox legislation/images}} can be tweaked to display different images depending on the date when the legislation was decided – for help with this, leave a message on the talk page.

Again, if a value is specified for |imagesize=, the image is given that width; otherwise the image width defaults to 180px.

In either case the image is given a link and alt text specified by |imagelink= and |imagealt=. If |imagelink= is omitted or given no value, the image is linked to its image description page.